Just ran into a strange issue where a layer using an alpha matte scales itself to fit the bounds of a mask applied to the alpha matte. Anyone ever seen this before? When I solo the matted layer, the glitch disappears, but when not solo'd and upon RAM previewing or scrubbing the timeline, in a random pattern of on and off frames the strangely scaled layer reappears.
Attached is an example/screen grab of this glitch, where the two scaled frames (layers "rotoMask" & "rotoMask 2") are the layers being unwillingly scaled, and the matte layers are just solids with animated masks (in this example being used to roto a mask for two foreground buildings).
On other thing that may or may not be a factor, the matte layers are parented to 2D nulls that are expression-connected to 3D nulls via the to.Comp method.
I'm running AE 126.96.36.199, OSX 10.9.3 on a new Mac Pro.
Thanks for your help!
Could be anything, but I tend to think your adjustement layer is screwing your 3D and that ultimately is the underlying deeper issue... Pre-compose the otehr stuff and it should work better.